Giant covalent structures

• Giant covalent structures are similar to giant ionic lattices. What is the exception?

  There are no charged ions in giant covalent structures
• What are the atoms bonded to each other by and ehat does this mean

  Strong covalent bonds meaning they'll have high melting and boiling
• Giant covalent structures don't conduct electricity- not even when molten., except for which for which three

  Graphite, graphite and fullerenes
• Which atoms are the main giant covalent structures made up of

  Carbon atoms
• Why can carbon form many different types of molecule

  Carbon atoms can form up to four covalent bonds and bond easilly to other Carbon atoms to make chains of rings